Sustainable Timescales

Will our intelligence prove to be too much of a “good” thing and turn us into evolution’s deadliest blunder, or will at least some of us learn to tuck back into our family, no longer hubristic enough to play at being gods?

Another Mediterranean-Climate Mystery: Santiago and Central Chile

How does one revive the ancient water cycles that once richly greeted Valdivia and his conquistadors? Perhaps not surprisingly, in peering for the answer Carvallo looks back as much as forward, to techniques developed over 1,400 years ago by pre-Incan cultures to the north, in the Peruvian Andes.

Banning What Matters

You might think that an apparently harmless public good like a library would have no enemies. But in the age of Trump and his movement to Make America Grotesque Again, there turn out to be many.

I hear voices

One of them contends that there is no hope for the survival of civilization, regardless what we do; while the other thinks that humanity can get through this century of crises more or less intact, if it pulls together and behaves itself.